MC-700

BRITISH STYLE SEMICONDUCTOR PROTECTION FUSES The Edison British Style semiconductor protection fuses Replacement Table T to F (660V) include a 660VAC line utilizing new filler technology. These New F Range new fuses have greatly reduced peak let-through current Earlier Lowest Highest and energy under fault conditions and hence extend fuse T Range Rating Rating protection capability. They can be recognized by the letter 6CT 6FC 6FC F in their catalog number. Application and technical data 10CT 10FC 10FC for these 660VAC F fuses and the original line of 240VAC 12CT 12FC 12FC British T type fuses are presented on the following pages. 16CT 16FC 16FC 20CT 20FC 20FC 25ET 32ET 35FE 35FE F Range 35ET 35FE 40FE This is a superior design of fuses in the same physical 40ET 40FE 45FE package as the T range. 45ET 45FE 50FE 56ET 63FE 63FE Equivalent Ratings 63ET 63FE 71FE This table shows the suggested equivalent ratings to 80FE replace a T with an F. 90FE 80ET 80FE 100FE Because of the new design technology it has been possible 65EET 2 to obtain the equivalent energy let-through I t with a higher 75EET 90EET 100FEE amp rated fuse hence reducing the possibility of premature 110EET 120FEE operation. 140FEE 140EET 140FEE 160FEE This table gives a range of suggested acceptable new F 180FEE type to replace the earlier T type. 160EET 160FEE 200FEE 180FM To upgrade your protection to the new F series select a 160MT 200FM 200FM fuse rating within the range shown that suits your circuit 180MT 225FM 225FM inrush requirements. You will still have the same or better 200MT 250FM 250FM protection of your semiconductor devices. 280FM 280FM 250MT 315FM 315FM 280MT 350FM 350FM It should be remembered that to protect devices we must 315MT 350FM 350FM consider the energy let-through of the selected fuse. The 355MT 350MT 350FM label amp rating will relate to the full load current and the 180MMT 180FM 180FM circuit inrush amps. 200MMT 200FM 200FM 225MMT 225FM 225FM The suggested replacements are based on: 280MMT 280FM 280FM a. Similar surge withstand to normal circuit overloads. 315MMT 315FM 315FM 2 b. Lower total I t let-through. 355MMT 350FM 350FM This gives enhanced reliability due to the use of a higher 400FMM current rated fuse which avoids nuisance operation and still 450FMM gives improved short-circuit protection. 400MMT 500FMM 500FMM 450MMT 550FMM 550FMM 500MMT 630FMM 630FMM 560MMT 700FMM 700FMM 630MMT 700FMM 700FMM 710MMT 700FMM 700FMM 84BRITISH STYLE SEMICONDUCTOR PROTECTION FUSES 660 VOLT (AC) RANGE 2 2 I t (A SEC) Carton Part Clearing Clearing Watts D.C. Carton Weight Type Outline Number Pre-arc At 415V At 660V Loss Volts Qty. (Kg) 6FC 1.5 6 8 3 20 0.160 10FC 6 18 30 3 20 0.160 FC 12FC 9 26 45 3 660 20 0.160 16FC 13 44 65 6 20 0.160 2.53 64.3mm 20FC 30 100 160 6 20 0.160 25ET 25 150 250 7 10 0.420 450 ET 32ET 32 190 350 11 10 0.420 35FE 33 130 200 9 10 0.420 40FE 52 180 300 9 10 0.420 45FE 76 270 450 11 10 0.420 50FE 103 380 600 11 10 0.420 2.50 FE 63FE 135 480 750 12 450 10 0.420 63.5mm 71FE 210 600 950 17 10 0.420 80FE 250 900 1500 20 10 0.420 90FE 360 1300 2100 20 10 0.420 100FE 470 1800 2800 23 10 0.420 65EET 210 2000 3000 20 5 0.450 EET 75EET 420 2600 4400 20 450 5 0.450 90EET 490 3000 4500 19 5 0.450 100FEE 400 1600 2400 24 5 0.450 120FEE 540 1900 3100 32 5 0.450 2.76 FEE 140FEE 850 2500 3800 36 450 5 0.450 70.0mm 160FEE 1000 3700 5700 46 5 0.450 180FEE 1400 5300 8400 46 5 0.450 200FEE 1900 7100 11400 52 5 0.450 180FM 1400 7500 13500 40 1 0.240 200FM 2600 10500 18500 40 1 0.240 225FM 3700 14500 26500 44 1 0.240 FM 250FM 5200 20500 37500 48 450 280FM 7000 30500 55000 48 1 0.240 315FM 10000 40000 77000 55 1 0.240 3.15 -3.35 350FM 15000 60000 105000 55 1 0.240 80-85mm 400FMM 10000 40000 72500 85 1 0.450 450FMM 15000 60000 105000 90 1 0.450 FMM 500FMM 20000 82000 15000 100 1 0.450 550FMM 30000 120000 215000 100 450 1 0.450 630FMM 45000 180000 310000 100 1 0.450 700FMM 60000 245000 420000 120 1 0.450 3.15 -3.35 80-85mm Interrupting rating 200kA RMS Symmetrical. Watts loss provided at rated current. 85 These fuses meet the requirements of BS 88 Part 4 and IEC 269-4 Consult Edison for UL Recognition information